脂联素在早产儿血清中的表达及其与体格指标、载脂蛋白和骨密度的关系

目的:探讨脂联素在早产儿血清中的表达水平及其与体格指标、载脂蛋白和骨密度的相关性。方法:选择2017年1月至2018年5月期间我院新生儿科住院的早产儿72例作为研究组,另外选择同期我院出生的足月新生儿58例作为对照组。对比两组新生儿的一般资料、脂联素、载脂蛋白和骨密度水平,分析早产儿血清脂联素水平与体格指标、载脂蛋白和骨密度的相关性,同时分析影响血清脂联素水平的危险因素。结果:两组受试新生儿的性别、胸围、低密度脂蛋白(LDL-C)及高密度脂蛋白(HDL-C)之间的差异无统计学意义(P0.05);研究组新生儿的胎龄、体质量指数(BMⅠ)、身长、头围、总胆固醇(TC)及三酰甘油(TG)明显低于对照组(P0.05);与对照组相比,研究组新生儿血清脂联素、载脂蛋白A-Ⅰ(Apo A-Ⅰ)及左胫骨中段超声波在骨骼中的传播速度(SOS)水平明显下降,而载脂蛋白B(Apo B)和Apo B/Apo A-Ⅰ水平均显著升高,且差异均具有统计学意义(P0.05);早产儿血清脂联素水平与胎龄、BMⅠ、头围、TC、TG、Apo A-Ⅰ及SOS呈正相关(P0.05),与Apo B和Apo B/Apo A-Ⅰ水平呈负相关(P0.05);Logistic回归结果显示,胎龄、BMⅠ、Apo B/Apo A-Ⅰ及SOS是早产儿血清脂联素水平的影响因素(P0.05)。结论:早产儿血清脂联素水平低于足月儿,血清脂联素水平与体格指标、载脂蛋白及骨密度密切相关,可能对新生儿的生长发育具有重要的调节作用。     

血清BDNF、IGF-1及Hcy与癫痫患者认知功能损害关系研究

为探讨血清脑源性神经营养因子(BDNF)、胰岛素样生长因子-1 (IGF-1)及同型半胱氨酸(Hcy)与癫痫患者认知功能损害(MCI)的关系,本研究选取2015年1月至2016年10月由本院收治并确诊的癫痫患者116例,根据患者是否发生轻度认知障碍(MCI),将患者分为MCI组50例、非MCI组66例,选取健康体检对象60例作为对照组,检测各组血清BDNF、IGF-1、Hcy水平,并采用韦氏成人智力量表中国修订本(WAIS-RC)对三组患者进行测量,并分析血清BDNF、IGF-1、Hcy与WAIS-RC量表评分的关系。结果显示,与非MCI组和对照组比较,MCI组患者的血清Hcy水平明显升高(p0.05),MCI组患者的血清BDNF、IGF-1水平明显降低(p0.05);非MCI组患者的血清Hcy水平明显高于对照组(p0.05),非MCI组患者的血清BDNF、IGF-1水平明显低于对照组(p0.05);MCI组患者的VIQ、PIQ、FIQ量表评分明显低于非MCI组和对照组(p0.05);非MCI组患者的VIQ、PIQ、FIQ量表评分与对照组比较,差异无统计学意义(p0.05);MCI组患者的VIQ、PIQ、FIQ量表评分与血清BDNF、IGF-1水平呈显著的正相关关系(p0.05);MCI组患者的VIQ、PIQ、FIQ量表评分与血清Hcy水平呈显著的负相关关系(p0.05)。本研究发现癫痫患者MCI血清BDNF、IGF-1水平显著降低、Hcy显著升高,说明血清BDNF、IGF-1和Hcy水平与患者MCI程度有一定的相关性。     

深度水解蛋白配方奶在不同体重早产儿喂养中的临床效果观察

目的:评估深度水解配方奶(eHPF)在不同体重早产儿早期喂养中临床应用效果。方法:选取2017年9月至2018年12月出生的早产儿,分为极低出生体重儿组(体重1000-1500g之间)62例和低出生体重儿(体重1500-2000g之间)100例,每组再随机分为两组,分别予以深度水解蛋白奶(eHPF)和早产儿配方奶(SPF)喂养。极低出生体重儿组于12小时后开始微量喂养,低出生体重儿12小时内适量喂养;极低出生体重儿组深度水解蛋白奶喂养2周后改早产儿奶喂养,低出生体重儿组深度水解蛋白奶1周后改早产儿奶喂养。比较深度水解蛋白奶在不同体重早产儿早期喂养中的临床应用效果,不同体重早产儿恢复出生体重时间、每日体重增长速度、胃管留置时间、完全肠内喂养天数、住院天数、喂养不耐受发生率、宫外发育迟缓发生率及尿素氮、碱性磷酸酶指标。结果:深度水解蛋白喂养组极低出生体重儿/低出生体重儿恢复出生体重天数、完全肠道喂养天数、胃管留置时间、住院天数较早产儿奶喂养组明显缩短(P0.05),每天体重增长优于早产儿组,喂养不耐受、宫外发育迟缓发生率明显低于早产儿组(P0.05),尿素氮、碱性磷酸酶无统计学差异(P0.05)。结论:深度水解蛋白奶用于不同体重早产儿早期喂养效果明显优于早产儿配方奶,其更有助于早产儿的生长发育。     

孕早中期血清脂联素、抵抗素、铁蛋白水平及与妊娠期糖尿病的相关性分析

目的:研究孕早中期血清抵抗素、脂联素及铁蛋白水平与妊娠期糖尿病的相关性。方法:选取孕早期(11-13周)、孕中期(24-28周)诊断为GDM的孕妇46例作为试验组(GDM组),及同期糖代谢正常的孕妇46例作为对照组(NGT组),检测和比较两组孕早、中期血清脂联素、抵抗素、铁蛋白水平,计算各期胰岛素稳态模型抵抗指数(HOMA-IR),并对孕早中期血清抵抗素、脂联素及铁蛋白(SF)水平与HOMA-IR进行相关性分析。结果:与NGT组比较,GDM组孕早、中期血清脂联素水平均显著降低,且孕早期血清脂联素水平与HOMR-IR呈负相关(r=-0.21,P0.05);孕早、中期血清SF水平均显著升高,且孕早期血清SF水平与IR呈正相关(r=0.238,P0.05);孕早期血清抵抗素水平无明显变化(P0.05),但孕中期血清抵抗素水平显著降低(P0.05)。多元线性回归分析结果显示孕早期血清铁蛋白水平对HOMA-IR的影响更显著,孕早期SF每升高1μg/l,HOMA-IR提高0.179。孕早期SF水平作为预测GDM发病的血清学阈值为≥23.2μg/L。结论:孕早期血清脂联素及SF水平变化均与GDM的发病相关,孕早期血清SF水平可能作为早期诊断和预防GDM的血清学指标。     

糖尿病患者的MPV、脂联素水平与冠心病的关系

目的:研究糖尿病(Diabetes Mellitus,DM)患者血小板体积(mean platelet volume,MPV)和血清脂联素水平与冠心病的关系。方法:选取研究对象共150例分为三组,其中101名糖尿病患者根据冠脉造影结果分为:A组(糖尿病合并冠心病组)共72人,B组(糖尿病非冠心病组)共29人。对照组为排除糖尿病且冠脉造影正常者共49人。入院次日检测空腹血常规(含MPV),应用ELISA法检测各组血清脂联素水平。应用Gensini评分系统评估冠状动脉的狭窄程度。结果:A组和B组的脂联素水平均低于对照组(P0.05),且A组脂联素水平低于B组(P0.05)。A组与B组MPV水平均高于对照组(P0.05),且A组MPV水平高于B组(P0.05)。相关性分析显示Gensini评分与脂联素水平负相关(r=-0.59,P0.001),Gensini评分与MPV正相关(r=0.56,P0.001)。结论:脂联素、MPV与糖尿病合并冠心病的发生显著相关,而脂联素可能通过拮抗糖尿病患者血小板活性程度,延缓心血管并发症的发生。     

新生儿出生体重、胎龄与血清铁水平相关性分析

目的探讨新生儿出生体重、胎龄与血清铁水平的相关性,为促进新生儿生长发育提供科学依据。方法采用全自动生化分析法分别对49例足月儿及49例早产儿的血清铁(SI)、血清铁蛋白(SF)和总铁结合力(TIBC)进行检测。结果足月儿的血清铁、血清铁蛋白和总铁结合力水平均明显高于早产儿(P0.05),而且血清铁蛋白、血清铁水平与出生体重、胎龄密切相关(P0.05)。结论足月儿与早产儿的铁含量存在明显差异,适量补充铁剂,可促进小儿体格与智能的健康成长。     

运动干预对肥胖超重孕妇血清游离脂肪酸及胎儿的影响

目的:研究运动干预对不同糖耐量超重肥胖孕妇孕期体重增加、妊娠晚期血清游离脂肪酸(Free Fatty Acids,FFA)、甘油三酯(Triglyceride,TG)水平及新生儿体重的影响.方法:2008年6月～2009年12月,对来自高危门诊的的肥胖超重孕妇,分别给予单纯饮食干预(饮食组)或运动饮食联合干预(运动加饮食组).妊娠32周采集两组病例空腹血样,测定FFA及TG.排除各组有运动禁忌的孕妇.足月分娩妊娠期糖尿病(Gestational Diabetes Mellitus,GDM)及正常糖耐量(Normal Glucose Tolerant,NGT)孕妇共143例,运动加饮食组(n=73,GDM 21例,NGT 52例).饮食组(n=70,GDM23例,NGT47例)按不同糖耐量分别进行了对比研究.分析二组在孕期体重增加,孕晚期脂代谢水平及新生儿出生体重方面的差异,并就新生儿出生体重与孕期体重增加及孕晚期血清FFA水平的关系做相关性分析.结果:两组孕妇在年龄,孕前体重指数及分娩孕周方面差别无统计学意义.两组GDM在孕期增重(p＜0.01)、新生几出生体重体重(p＜0.05)、孕晚期血清FFA(p＜0.05)、TG水平(p＜0.05)等方面差别有显著性.两组NGT在孕期体重增加(p＜0.05)及新生儿出生体重方面差别有显著性(p＜0.05);饮食组平均血清FFA及TG水平高于运动加饮食组,但未形成显著性差异.饮食组新生儿出生体重与孕期增重(NGT,r=0.468,P＜0.01;GDM,r=0.564,p＜0.01)及孕32周血清FFA水平(NGT,r=0.431,P＜0.05;GDM,r=0.462,p＜0.05)相关有显著性.饮食加运动组新生儿出生体重与孕期增重相关无显著性,与血清FFA相关有显著性(NGT,r=0.375,P＜0.05;GDM,r=0.405,p＜0.05).两组孕妇在巨大儿发生率方面有显著性差异.结论:肥胖超重孕妇新生儿出生体重与孕晚期血清FFA水平有关.饮食结合运动干预有助于肥胖超重GDM孕妇在孕期体重增加,妊娠晚期血清FFA水平,新生儿出生体重,巨大儿发生率等方面取得良好的妊娠结局.     

血清TGF-β1、BMP-7、IL-6及TNF-α与新生儿呼吸窘迫综合征的关系研究

目的:探讨新生儿呼吸窘迫综合征(NRDS)患儿血清中转化生长因子β1(TGF-β1)、骨形态发生蛋白-7(BMP-7)、白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)的变化及与病情严重程度的相关性。方法:选取2017年2月至2019年2月在本院出生的75名NRDS早产儿,根据出生后12 h内是否接受肺表面活性物质(PS)治疗分为PS组(n=37)和非PS组(n=38),同期选择36例非NRDS早产儿作为对照组。比较出生后不同时间点各组早产儿血清四种细胞因子水平,Spearman相关性分析四种细胞因子与病情严重程度的相关性。结果:PS组患儿出生后0、1、3 d血清四种细胞因子均呈先升高后降低趋势(P0.05),血清TGF-β1、BMP-7水平在出生后1d和3d高于对照组(P0.05),血清IL-6、TNF-α始终高于对照组(P0.05);非PS组患儿出生后0、1、3、7 d血清TGF-β1、BMP-7、IL-6、TNF-α均持续升高(P0.05),且始终高于对照组(P0.05),血清TGF-β1、BMP-7水平在出生后3 d和7 d高于PS组,血清IL-6、TNF-α在出生后7 d高于PS组(P0.05)。IL-6、TNF-α水平随NRDS早产儿病情分级的提高而升高(P0.05),Spearman相关性分析结果显示,血清TNF-α、IL-6水平与病情严重程度呈正相关(均P0.05)。结论:NRDS早产儿血清TGF-β1、BMP-7、IL-6、TNF-α水平明显升高,经PS治疗后,NRDS早产儿炎性因子水平明显降低,检测IL-6、TNF-α水平有助于评估NRDS早产儿的病情。     

新加越鞠丸对非酒精性脂肪肝大鼠血清脂联素及瘦素水平的影响

目的:观察新加越鞠丸对非酒精性脂肪肝大鼠血清脂联素及瘦素的影响.方法:3只健康雄性SD大鼠随机分为4组,每组9只.高脂高糖饲料喂养制备大鼠非酒精性脂肪肝模型.8W病理显示造模成功后,每组给予相应药物干预,连续4W.酶联免疫吸附(ELISA)法测定各组大鼠血清中脂联素(ADP)浓度及瘦素(LP)浓度,HE染色观察肝脏病理变化.结果:与正常对照组大鼠比较,模型对照组血清中ADP浓度明显降低(P＜0.05),LP明显升高(P＜0.05);与模型对照组大鼠比较,新加越鞠丸组血清中ADP浓度明显升高(P＜0.05),LP明显降低(P＜0.05);新加越鞠丸组大鼠较水林佳组,血清中ADP浓度显著升高(P＜0.05),LP有显著性差异(P＜0.05).结论:新加越鞠丸可通过升高血清脂联素水平,降低血清瘦素水平,减轻非酒精性脂肪肝的损伤.     

血清Ghrelin、p21 waf/cip1以及IGF-1与儿童特发性矮小症相关性分析

摘要 目的：研究特发性矮小症（ISS）儿童血清生长激素释放肽（Ghrelin）、p21 waf/cip1以及胰岛素生长因子-1（IGF-1）水平及其临床意义。方法：选择2017年1月到2020年12月在我院接受治疗的特发性矮小症儿童60例（ISS组）,选择同期体检健康儿童60例作为对照（对照组）,比较两组儿童一般资料,检测并比较两组儿童血清Ghrelin、p21 waf/cip1以及IGF-1水平。分析ISS儿童血清Ghrelin、p21 waf/cip1以及IGF-1水平与生长指标的相关性,同时分析治疗对其影响。结果：（1）ISS组患儿性别、年龄和体质指数与对照组比较无显著差异（P>0.05）,但身高、体重以及生长速度显著低于对照组儿童（P<0.05）;（2）ISS组患儿血清Ghrelin和p21 waf/cip1均显著高于对照组,而血清IGF-1显著低于对照组（P<0.05）;（3）ISS组患儿血清Ghrelin和p21 waf/cip1均与身高、体重和生长速度呈负相关,而血清IGF-1与身高、体重和生长速度呈正相关（P<0.05）;（4）治疗显著提高ISS组患儿身高、体重、生长速度以及血清IGF-1水平,而显著降低ISS组患儿血清Ghrelin和p21 waf/cip1水平（P<0.05）。结论：Ghrelin、p21 waf/cip1和IGF-1在特发性矮小症患儿血清中表达异常,共同调控儿童生长发育,是评价儿童生长发育的良好指标。     

Uniform hypothesis of cell behavior--movement, contact inhibition of movement, adhesion, chemotaxis, phagocytosis, pinocytosis, division, contact inhibition of division, fusion.

The cell has been represented as a charged liquid drop. Contrary to the DLVO-theory, the effect of the surface potential upon the value of the interfacial tension of the cell membrane has also been taken into consideration. The cell membrane has visco-elastic properties and its constituents may move against each other. Cell movement is caused by the appearance of a small number of the electrically charged constituents of the cell membrane on the leading edge of the cell. This produces a local decrease in the surface tension and the cell membrane expansion. At the moment of contact between two cells proton transfers occur between the strongly negatively charged microvilli of one cell and the body of the other, analogous to a condenser breakdown. This, through the effect on the surface tension, causes contact inhibition of movement. The distribution of the proton dissociable groups modifies the interaction between the cells (differentiation) and between the cell and the substratum (adhesion). Adsorption of the charged compounds at the surface of the cell membrane, decreasing the surface potential and increasing the surface tension, causes the phenomena of chemotaxis, phagocytosis and pinocytosis. Cell division, considered in the terms of the surface energy, requires an adequate supply of considerable quantities of energy inversely proportional to the surface potential value. In case of a reduction of the distance between the cells, their surface potential and the energetic barrier of the cell division processes increases, and causes contact inhibition of cell division. Due to their high charge, division of neoplastic cells is inhibited much later than division of normal cells, or is completely ininhibited due to geometric conditions. Fusion of the cell membrane in the intra-cellular and intercellular processes is a reverse process in relation to the cell division.     

The Effect of Age and Gender on Al, B, Ba, Ca, Cu, Fe, K, Li, Mg, Mn, Na, P, S, Sr, V, and Zn Contents in Rib Bone of Healthy Humans

The effect of age and gender on major, minor, and trace element contents in the intact rib bone of 80 relatively healthy 15–55-year-old women and men was investigated. Contents or upper limit of contents of 16 chemical elements in the rib bone were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Mean values (M?±?SΕΜ) for the mass fraction of Ba, Ca, Cu, Fe, K, Li, Mg, Na, P, S, Sr, and Zn (milligram per kilogram of dry bone) were as follows: 2.54?±?0.16, 171,400?±?4,050, 1.35?±?0.22, 140?±?11, 1,874?±?71, 0.049?±?0.011, 2,139?±?38, 5,378?±?88, 75,140?±?1,660, 1,881?±?51, 291?±?20, and 92.8?±?1.5, respectively. The upper limits of contents of Al, B, Mn, and V were <7.20, <0.65, <0.36, and <0.03, respectively. Statistically significant tendency for the Ca, Mg, and P content to decrease with age was found in the human rib bone, regardless of gender. The mass fraction of Fe in the male rib bone increases with age. It was shown that higher Ca, Mg, Na, P, and Sr mass fractions as well as lower Fe content were typical of female ribs as compared to those in male ribs.     

Distribution of N,P, K,Ca, Mg,S, Zn,Fe, Mn and Cu in groundnut

Summary Concentration of N, P, K, Ca, Mg and S in summer groundnut crop was higher than in kharif while Zn, Fe, Mn and Cu contents were higher in summer crop. Kernel's N, P and Zn; Leaflet's Ca and Mn; Stem's K and Fe; Root's S and Cu and Petiole's Mg contents were highest. Shell's N, P, K, Mg, S, Zn and Cu; Kernel's Ca, Fe and Mn contents were the least. N, P, K, S, Zn and Cu concentrations decreased linearly as the crop grew. Ca, Mg, Fe and Mn concentrations did not display any distinct pattern. Ca concentration was positively correlated with pod yield in both the seasons.     

Synthesis,tautomerism, and antimicrobial,anti-HCV,anti-SSPE,antioxidant, and antitumor activities of arylazobenzosuberones

2-Dimethylaminomethylene-1-benzosuberone 1 was coupled with diazotized aniline derivatives to afford a series of the hitherto unreported 2-arylazo-1-benzosuberones 3a–i. The tautomeric structure and the effect of substituents on the tautomeric form (s) of the products 3a–i were discussed. Similar coupling of the enaminone 1 with diazonium salts of heterocyclic amines gave the respective fused azolotriazino-benzosuberones. Some of the newly synthesized compounds showed potent antimicrobial, anti-HCV, antioxidant, antitumor (as topoisomerase I inhibitors), and antimicrobial activities.     

The effect of malathion,diazinon, and various concentrations of zinc,copper, nickel,lead, iron,and mercury on fish

Acute and chronic toxicity tests for malathion, diazinon, copper (Cu), mercury (Hg), lead (Pb), zinc (Zn), nickel (Ni), and iron (Fe) were conducted. Mortalities ofBarilius vagra andCyprinus carpio (common carp) were variable but LC50-96 hr were similar for pesticides. AdultB. vagra seem to be more sensitive to malathion than juvenile carp. Both juvenile carp and adultB. vagra were extremely sensitive to diazinon. Long-term exposure to pesticides modified morphology and behavior. The LC50-96 values for Cu, Hg, and Pb were 0.3, 0.16, and 0.44, respectively, for smaller fish and 1.0, 0.77, and 1.33, respectively, for larger fish. Replicate LC50 values for Zn, Ni, and Fe were somewhat variable, and for these metals, the size of the fish seemed to affect response because LC50 values increased as fish size increased. Cooper, Pb, Zn, and Fe residues following exposure to sublethal concentrations of these metals for 15 d were significantly greater in whole juvenile common carp than in controls.